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Bug 2149056 - [RHEL8.8] UCX ended up with SIG6 core file on the RDMA server or client host after "openmpi ucx osu_bw" test
Summary: [RHEL8.8] UCX ended up with SIG6 core file on the RDMA server or client host ...
Keywords:
Status: CLOSED MIGRATED
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: ucx
Version: 8.8
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Kamal Heib
QA Contact: Infiniband QE
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-11-28 17:39 UTC by Brian Chae
Modified: 2023-09-21 14:31 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2023-09-21 14:31:23 UTC
Type: Bug
Target Upstream Version:
Embargoed:
pm-rhel: mirror+

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker   RHEL-6132 0 None Migrated None 2023-09-21 14:31:19 UTC
Red Hat Issue Tracker RHELPLAN-140710 0 None None None 2022-11-28 17:42:31 UTC

Description Brian Chae 2022-11-28 17:39:05 UTC 
Description of problem:

After "openmpi ucx osu_bw" test, RDMA server host was left with SIG 6 core file, when the test was run on MLX5 ROCE with bonding/teaming. This took place on RDMA lab machines of rdma-dev-19/20 pair - rdma-dev-19 as server in bonding and rdma-dev-20 as client hosts in teaming.


On the rdma-dev-19 (server):

TIME                            PID   UID   GID SIG COREFILE  EXE
Mon 2022-11-28 11:39:01 EST   79390     0     0   6 present   /usr/lib64/openmpi/bin/mpitests-osu_bw
total 2452
-rw-r-----. 1 root root 2504822 Nov 28 11:39 core.mpitests-osu_bw.0.02d616224e974648ae9e3d757a08ba58.79390.1669653541000000.lz4
Red Hat Enterprise Linux release 8.8 Beta (Ootpa)

This seems to be a regression, as the same test in RHEL8.7.0 did not produce the core in the server side.


Version-Release number of selected component (if applicable):

Clients: rdma-dev-20
Servers: rdma-dev-19

DISTRO=RHEL-8.8.0-20221120.2

+ [22-11-28 11:37:35] cat /etc/redhat-release
Red Hat Enterprise Linux release 8.8 Beta (Ootpa)

+ [22-11-28 11:37:35] uname -a
Linux rdma-dev-19.rdma.lab.eng.rdu2.redhat.com 4.18.0-438.el8.x86_64 #1 SMP Mon Nov 14 13:08:07 EST 2022 x86_64 x86_64 x86_64 GNU/Linux

+ [22-11-28 11:37:35] cat /proc/cmdline
BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-438.el8.x86_64 root=UUID=67eba586-c572-49ad-8973-e9030c9f66e6 ro console=tty0 rd_NO_PLYMOUTH intel_idle.max_cstate=0 intel_iommu=on iommu=on processor.max_cstate=0 crashkernel=auto resume=UUID=a124f939-9473-482f-bc5f-f093bc222674 console=ttyS1,115200

+ [22-11-28 11:37:35] rpm -q rdma-core linux-firmware
rdma-core-41.0-1.el8.x86_64
linux-firmware-20220726-110.git150864a4.el8.noarch

+ [22-11-28 11:37:35] tail /sys/class/infiniband/mlx5_2/fw_ver /sys/class/infiniband/mlx5_3/fw_ver /sys/class/infiniband/mlx5_bond_0/fw_ver
==> /sys/class/infiniband/mlx5_2/fw_ver <==
12.28.2006

==> /sys/class/infiniband/mlx5_3/fw_ver <==
12.28.2006

==> /sys/class/infiniband/mlx5_bond_0/fw_ver <==
14.31.1014

+ [22-11-28 11:37:35] lspci
+ [22-11-28 11:37:35] grep -i -e ethernet -e infiniband -e omni -e ConnectX
01:00.0 Ethernet controller: Broadcom Inc. and subsidiaries NetXtreme BCM5720 Gigabit Ethernet PCIe
01:00.1 Ethernet controller: Broadcom Inc. and subsidiaries NetXtreme BCM5720 Gigabit Ethernet PCIe
02:00.0 Ethernet controller: Broadcom Inc. and subsidiaries NetXtreme BCM5720 Gigabit Ethernet PCIe
02:00.1 Ethernet controller: Broadcom Inc. and subsidiaries NetXtreme BCM5720 Gigabit Ethernet PCIe
04:00.0 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]
04:00.1 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]
82:00.0 Infiniband controller: Mellanox Technologies MT27700 Family [ConnectX-4]
82:00.1 Infiniband controller: Mellanox Technologies MT27700 Family [ConnectX-4]

Installed:
  ucx-cma-1.13.0-1.el8.x86_64              ucx-ib-1.13.0-1.el8.x86_64          
  ucx-rdmacm-1.13.0-1.el8.x86_64          


How reproducible:
100%


Steps to Reproduce:
1. Install RHEL-8.8.0-20221120.2 on rdma-dev-19/20
2. Install & execute kernel-kernel-infiniband-ucx test script
3. Watch ucx result on client side


Actual results:

In rdma-dev-19 (server host), the above mentioned core file will be found.


Expected results:

No core files should be produced after the "openmpi ucx osu_bw" test

Additional info:
Comment 2 Brian Chae 2023-05-29 19:33:45 UTC 
On RHEL-8.9, the same core file from "openmpi ucx sou_bw" test resulted in the client host.

May 25 10:12:56 rdma-dev-20.rdma.lab.eng.rdu2.redhat.com kernel: sd 11:0:0:7: Warning! Received an indication that the LUN assignments on this target have changed. The Linux SCSI layer does not automatical
TIME                            PID   UID   GID SIG COREFILE  EXE
Thu 2023-05-25 11:23:55 EDT  368752     0     0   6 none      /usr/lib64/openmpi/bin/mpitests-osu_bw
total 0

=================================================================

Clients: rdma-dev-20
Servers: rdma-dev-19

DISTRO=RHEL-8.9.0-20230521.41

+ [23-05-25 11:07:48] cat /etc/redhat-release
Red Hat Enterprise Linux release 8.9 Beta (Ootpa)

+ [23-05-25 11:07:48] uname -a
Linux rdma-dev-20.rdma.lab.eng.rdu2.redhat.com 4.18.0-492.el8.x86_64 #1 SMP Tue May 9 14:50:21 EDT 2023 x86_64 x86_64 x86_64 GNU/Linux

+ [23-05-25 11:07:48] cat /proc/cmdline
BOOT_IMAGE=(hd0,msdos1)/vmlinuz-4.18.0-492.el8.x86_64 root=UUID=ceb5ecf0-f76e-43d9-a805-fb8115e8ca03 ro intel_idle.max_cstate=0 processor.max_cstate=0 intel_iommu=on iommu=on console=tty0 rd_NO_PLYMOUTH crashkernel=auto resume=UUID=318b16c0-dfd8-45e0-be0e-f6400597df19 console=ttyS1,115200n81

+ [23-05-25 11:07:48] rpm -q rdma-core linux-firmware
rdma-core-44.0-2.el8.1.x86_64
linux-firmware-20230515-115.gitd1962891.el8.noarch

+ [23-05-25 11:07:48] tail /sys/class/infiniband/mlx5_2/fw_ver /sys/class/infiniband/mlx5_3/fw_ver /sys/class/infiniband/mlx5_bond_0/fw_ver
==> /sys/class/infiniband/mlx5_2/fw_ver <==
12.28.2006

==> /sys/class/infiniband/mlx5_3/fw_ver <==
12.28.2006

==> /sys/class/infiniband/mlx5_bond_0/fw_ver <==
14.31.1014
+ [23-05-25 11:07:48] lspci
+ [23-05-25 11:07:48] grep -i -e ethernet -e infiniband -e omni -e ConnectX
01:00.0 Ethernet controller: Broadcom Inc. and subsidiaries NetXtreme BCM5720 Gigabit Ethernet PCIe
01:00.1 Ethernet controller: Broadcom Inc. and subsidiaries NetXtreme BCM5720 Gigabit Ethernet PCIe
02:00.0 Ethernet controller: Broadcom Inc. and subsidiaries NetXtreme BCM5720 Gigabit Ethernet PCIe
02:00.1 Ethernet controller: Broadcom Inc. and subsidiaries NetXtreme BCM5720 Gigabit Ethernet PCIe
04:00.0 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]
04:00.1 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]
82:00.0 Infiniband controller: Mellanox Technologies MT27700 Family [ConnectX-4]
82:00.1 Infiniband controller: Mellanox Technologies MT27700 Family [ConnectX-4]
Comment 3 RHEL Program Management 2023-09-21 14:27:57 UTC 
Issue migration from Bugzilla to Jira is in process at this time. This will be the last message in Jira copied from the Bugzilla bug.
Comment 4 RHEL Program Management 2023-09-21 14:31:23 UTC 
This BZ has been automatically migrated to the issues.redhat.com Red Hat Issue Tracker. All future work related to this report will be managed there.

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